Technical 128 Cylinder Head Studs

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Technical 128 Cylinder Head Studs

Steve128SL

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Does anyone know of a source for the 12mm x 1.25 cylinder head studs on the 128 engine? I need 3 having had to drill out the original ones. I thought maybe the guys in Croatia would be able to help if I knew how to contact them.
 
Model
Fiat 128SL Coupe
Year
1974
Mileage
70000
have you tried these people Steve - https://en.fiatclub.eu/login.php?activation=ok

by the way, as a new owner of a 128 there are a couple of little bits I need. Have you any ideas where I should look?
cheers
geoff
Thanks Geoff, I hadn’t seen that site before so I’ve registered on there now and will try. I have quite a few 128 parts - mostly mechanical bits although I do have a brand new 128 saloon fuel tank which I thought I might be able to adapt to the Coupe but there are too many differences. What parts are you after?
 
Here's a full set of bolts, studs and nuts (in Switzerland) :-

Or individual studs (from the U.S.) :-

F128 cyl hd stud 12mm_screenshot-1738481063685.png


I realise you might not want to pay this much or have to ship from afar but a few suggestions:-

Would it be possible to obtain bolts of the same tread, cut off the heads and thread the plain ends?
Are these studs used elsewhere on other Fiat models?
Have you contacted any businesses that work on these Fiat engines to see if they might have a few to spare (new or S/hand)?
I can't remember the head bolt/stud arrangement on the 128 engine but could bolts not be fitted to replace the missing studs after the head has been fitted
 
Having thought about it for a bit, I vaguely recall that the studs and head bolts are not parallel? on these engines, so the head has to be fitted over the studs first and then the head bolts inserted? So, maybe bolts could be used after the head is fitted? I also seem to recall that possibly earlier 128 engines had all 10mm bolts used on the head - but my old memory might be failing me... I do remember there were 2 Fiat special tools needed to tighten/ retighten the head fasteners in situ.

Also, given the hardness of the head bolts, it might not be feasible to cut threads on one to convert it into a stud, I seem to recall that the bolt threads might have been 'rolled' into the material at the factory (makes them less likely to fail where the thread starts) just like spoked wheel spoke threads.

I reckon your best (and cheapest) option is to try to find someone who could let you have some used head studs.
 
Thanks Geoff, I hadn’t seen that site before so I’ve registered on there now and will try. I have quite a few 128 parts - mostly mechanical bits although I do have a brand new 128 saloon fuel tank which I thought I might be able to adapt to the Coupe but there are too many differences. What parts are you after?
I recently bought a one owner 1979 very original 128 in Italy and there are just a couple of items it needs : 1) passenger door 'rubbing strip' - black trim strip. 2) little oval rubber grommets which cover the holes presumably where the chrome bumper was mounted to the body on older models. 3) screw on clamp to secure spare wheel in place.
These are obscure things, not important but very probably still on a scrapped car !
cheers
 
I might have the spare wheel clamp - if it is the same as fitted to the 128 3p. Is it a large dished washer (to fit the wheel centre) with a sort of wing bolt to tighten it?
 
I now realise that I also need a door stay for one of the rear doors
@renault

Have you tried:- https://www.fiatparts.de

This co. lists a 'door check strap' (which is what the door stay is called) @ Euro10 but unfortunately this part is shown as 'currently not available' (an image of it can be found under 'interior/attachment parts).
They also stocks lots of parts for the 128, incl. chrome front and rear bumpers (2 types, with or without rubber strip).

Also -
https://shop.arnold-classic.com/en/fiat/128/doors/ shows a door catch strap @ Euro 24.90 , they also list the plastic roller for the door catch strap if this is all you need to repair a broken catch @ Euro1.79.
 
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